Return-Path: From: "Han Hoekstra" To: Subject: RE: [Bluez-users] Has anyone seen these problems with the CSRBlueCore and BlueZ before ? MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" In-Reply-To: <1111068128.11792.73.camel@pegasus> Message-ID: Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net Reply-To: bluez-users@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ users List-Post: List-Help: List-Subscribe: , List-Archive: Date: Thu, 17 Mar 2005 15:19:44 +0100 Hey Marcel, The info I get from hciconfig -a is : hci0: Type: UART BD Address: 00:A0:96:0A:BF:D4 ACL MTU: 192:8 SCO MTU: 64:8 UP RUNNING PSCAN ISCAN RX bytes:303 acl:0 sco:0 events:13 errors:0 TX bytes:434 acl:0 sco:0 commands:12 errors:0 Features: 0xff 0xff 0x8f 0x78 0x18 0x18 0x00 0x80 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH HOLD SNIFF PARK Link mode: SLAVE ACCEPT Name: 'BlueZ (0)' Class: 0x000100 Service Classes: Unspecified Device Class: Computer, Uncategorized HCI Ver: 1.2 (0x2) HCI Rev: 0x5df LMP Ver: 1.2 (0x2) LMP Subver: 0x5df Manufacturer: Cambridge Silicon Radio (10) This info is what I get just after booting the board. Greetings, Han --- Han Hoekstra Wireless Value B.V. Waanderweg 30a 7812 HZ Emmen Tel: +31-591-633200 -----Original Message----- From: bluez-users-admin@lists.sourceforge.net [mailto:bluez-users-admin@lists.sourceforge.net] On Behalf Of Marcel Holtmann Sent: donderdag 17 maart 2005 15:02 To: BlueZ Mailing List Subject: Re: [Bluez-users] Has anyone seen these problems with the CSRBlueCore and BlueZ before ? Hi Han, > I'm developping an application on an ARM-7 based platform which is > running Linux 2.4.18 with the latest BlueZ version for that platform. > In this application there is a master device that can connect to up to > 7 slaves (master and slave devices are all the same, the external > controller determines which is master). > > The application does the following, the external controller on the > master can send a single command to the Linux application, in the > command is an address field identifying to which slaves the command > must be passed on. A slave will pass the command on to its external > controller, which will respond to the command by sending a reply back > to the Linux slave, which in turn passes it on to the Linux master and > is then handed over to the external controller again. As soon as all > addressed slaves have responded, the sequence is repeated. > > Now to what I see happening, when I run this with 5 slaves, I don't > see any problems for more than an hour, but when I run it with 6 or 7 > slaves, I see that the BlueCore resets itself, with 6 slaves after > about 40 minutes and with 7 slaves already after 5 to 10 minutes. When > I eliminate the CRC check I can run the 7 slaves configuration for up > to about 40 minutes after it crashes. > > What I think happens is that the BlueCore receives data to fast over > the air and can not pass it on to the Linux CPU quick enough, so there > is an internal overflow in the BlueCore. > Communication between the BlueCore and the Linux CPU is done via BCSP > at a speed of 921600 baud. > > Has anybody seen behaviour like this before and is there something I > can do about it ??? what does "hciconfig -a" tells you about the chip? Regards Marcel ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users